操作excel

    static void create(String path) throws Exception {//读取文件FileInputStream in = new FileInputStream(path);XSSFWorkbook wb = new XSSFWorkbook(in);// 获得该工作区的第一个sheetXSSFSheet sheet = wb.getSheetAt(0);int rowNum = sheet.getLastRowNum();//行int columnNum = sheet.getRow(0).getPhysicalNumberOfCells();//列System.out.println(rowNum + "条数据，" + columnNum + "列");XSSFRow row;String bm;String mm;for (int i = 1; i <= rowNum; i++) {row = sheet.getRow(i);//读取值bm = (long) row.getCell(0).getNumericCellValue() + "";mm = jia(bm);//设置值row.getCell(4).setCellValue(mm);System.out.println(mm);}//另存为FileOutputStream out = new FileOutputStream("/Users/1111/Desktop/112000000.xlsx");//写出
        wb.write(out);out.close();}

以上程序使用poi读取excel表2007，修改值，另存一份。